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Operating Systems General Concepts Interview Questions
Questions Answers Views Company eMail

What is Difference between thread and process?

AirTies, Azingo, Bloomberg, Encora, Goldman Sachs, HCL, HP, MES, Microsoft, Samsung,

28 259608

How to communicate between difference process?

HP, IBM,

2 8969

What is the best way of communication in multi process environment? ex: getting log from different applications from multi servers?

HP,

1 3837

What is scheduling and How it effects the processor efficiency?

HP,

2 4394

What is virtual memory, if OS didt have that concept What are the problems can arise?

HP,

6 14862

What is the best suited algorithm to avoid internal fragmentation?

HP,

2 8543

How to escape from external fragmentation?

HP,

2 4743

What is difference in managing processes in windows, unix, RTOS?

HP,

2299

What is the difference between mutex and semaphore?

HP, Microsoft,

14 57140

What are counting semaphores?

HP, IBM,

4 13647

which is best among semaphores and mutexes?

HP,

2 6528

which is best among pipes, queues, shared memory and why?

HP,

2 5763

What are named pipes?

HP,

3 5682

What is the signal?

HP,

1 4307

What is the highest priority software interrupt?

HP,

1 4825

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Un-Answered Questions { Operating Systems General Concepts }

Explain latency, transfer and seek time with respect to disk i/o.?

623

What are the 3 types of software?

585

Tell me about virtual memory?

611

What is spooling?

658

State two differences between user and kernel space?

557




Explain condition variable.

587

What is system bus? Explain a few related terms.

643

Give an example of a Process State.

728

What are the four necessary and sufficient conditions behind the deadlock?

650

How do I know if my cpu is overheating?

559

Explain paging, faulting, and deadlock?

677

What is the most powerful operating system?

577

What is NOS?

642

Explain the refresh operation in a dynamic ram?

610

What is the purpose of using the yield method of thread class?

617

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